Combined power hammer and shovel mechanism



Oct. 15, 1929.

' .1 REANEY COMBINED POWER HAMMER AND SHOVEL MECHANISM Filed Oct. 8,1927 4 Sheets-Sheet 1 J. REANEY Oct. 15, 1929.

COMBINED POWER HAMMER AND SHOVEL MECHANISM Filed Oct. 8, 1927 4Sheets-Sheet' 2 INV%ITOK 0 W7 (kWh/3.44am? Oct. 15, 1929.

J. REANEY COMBINED POWER HAMMER AND SHOVEL HECHANISI Filed Oct. 8, 1927J. REANEY 31,985

COMBINED POWER HAMMER AND SHOVEL MECHANISM Filed 001;. 1927' 4Sheets-$heet 4 Patented Get. 15, 1929 NT OFFICE JAMES REANEY, J5BALTIMORE, MARYLAND COMBINED POWER HAMMER AND SHOVEL MECHANISMApplication filed October 8, 1927. Serial No. 224,853.

This invention relates to a combined power hammer and shovel mechanismand is particularly directed to a portable mechanism whereby the twostructures may cooperate in breaking up and removing material.

The present invention is a modification of and an improvement upon mypending application for patent, Serial Number 160,168, filed January th,1927, and differs from the 1 latter mainly in that in the presentstructure, the shovel or dipper structure may be made to cooperate withthe hammer and its suspension means whereby to properly position thehammer with respect to the object or material upon which it is tooperate.

The invention is especially useful in the operation of quarrying stonewhere the stone is to be broken up sufficiently to enable it to behandled with a power shovel or dipper.

I have found in the operation of a stone quarry that many large bouldersmay be readily broken up by power hammers, if the hammer is properlypresented to the face of the boulder and that an enormous saving in bothtime and expense over drilling and blasting will result.

I have also found that I can combine a hammer with a shovel structure insuch manner that the hammer may be raised. or lowered,

swung or tilted, and that I can utilize the dipper attachment of theshovel structure so it may engage the hammer and materially assist inplacing the latter against a rock or boulder so the latter can be brokento advantaste. a

With these objects in view, the invention is illustrated in theaccompanying drawing. wherein,

Fig. 1 shows in side elevation a portable vehicle carrying apower-operated dipper and also carrying a power hammer which latter isbeing; held in an inclined position against a rock by the dipper.

Fig. 2 illustrates a similar view but with the dipper and hammer in adifferent relative position.

Fig. 8 shows the boom and hammer in front elevation together with thesuspension cables for adjustably sustaining the hammer.

Fig. 4: illustrates the hammer in top or plan view and shows the frontedge of the dipper engaging the latter as though the parts were viewedon the line 44 of Fig. 2.

5 shows a vertical sectional detail through the hammer suspension frameand arms and a portion of the dipper as the same would appear if viewedon the line 5-5 of Fig. 4:-

Figs. 6 and 7 illustrate top and side views respectively of the detachedbreakingtool.

Fig. 8 shows the cable winding and tension varying means in top view,and

F ig. 9 illustrates the same in side elevation.

Referring to the drawings and particularly Figs. 1 and 2 thereof, thenumeral 20 designates a truck on which there is a cab 21 in which thepower plant is located.

The particular construction of the truck, the cab thereon, or thepower-plant is not material to this invention but the cab and powerplant. as is usual in similar structures, are mounted so as to be turnedon the truck or to be advanced with the truck.

In this instance, the cab carries a boom 22 whose lower end is attachedto the base of the cab and whose upper end is sustained by rods 23 andturn-buckles 24: whereby to support the boom in an inclined positionfrom the base of the cab.

In the present disclosure, the boom 22 sus- 30 tains dipper stick 25with the dipper 26 at the end thereof.

On the boom 22, I locate a power device 27, which has a pinion 28 thatengages a rack 29 on the dipper stick 25 whereby in conjunction withcertain cables, hereinafter to be explained, to move the latter.

At the upper end'of the boom 22, there are four grooved pulleys 34, 35,36 and 37 respectively over which cables 41, 42, 43 and 4-4 pass and theforward ends of the cables are designed to be attached to the hammer 45which latter is to be raised, lowered or tilted.

In making this attachment to the hammer 45, it is important that thecables, at the point of attachment, be sufficiently spread to preventthem foulingand also to enable the hammer to be shifted by eitherincreasing'or 100 lessening the tension on one or more of the cableswhich suspend the hammer.

In the present instance, I provide a spreader frame 46 which is clampedabout the hammer structure andthis frame has, in this instance, fourarms 48, 49, 50 and 51 and the lowerends of the hoisting and suspensioncables 41, 42, 43 and 44 are connected respectively to the said arms.

The cables 41, 42, 43 and 44 all extend from the grooved pulleys 34, 35,36 and 37 back toward the cab 21 and are wound about a power-driven drum54, which latter is designed to operate like any hoisting drum to windor unwind the cables at will.

preferably, however, wind all of the hoisting and suspension cablesabout the pose a means for varying the tension on any same drum so thatwhen the drum is turned, all of the cables will be wound or unwound.This simplifies the structure over one one of the cables independentlyof the others by making acable take more or less of the load of thehammer.

I have adopted the expression varying the tension with reference to thecable after due consideration, for if any one of the ca.- bles isoperated so its suspension end of the load is lowered, then the tensionon that one or more of the cables is lessened and the load -itself willshift correspondingly, and if one ormore of those cablesis or areoperated so its or their suspending end or ends is or are elevated, thensuch cable or cables will carry 'more of the load 'or have theirtensions inereased, and the load will shift or turn at ananglefcorresponding to the variations in such cable-tension.

V The .variation in cable tension is effected, in this instance, bynormally providing a bend or loopin the stretch of each cable so that todecrease the tension, the bend will be" straightened out or to increasethe tension, the bend or loop will be increased. By reference to Figs. 8and 9 of the drawings, it will be noted that each cable passes around atension-varying device, the same beingdesignated 55, 56, 57 and 58respective- I ly in the drawings.

These devices are all mounted on a horizontalshaft 59 and eachhas arocking-beam 60 with idlerrollers 61 and 62 at opposite ends thereof. ity 7 Each beam is provided with an actuating level- 63" with alocking-pawl 64 associated therewith, and a segment rack 65, is providedforengagement by the pawl in order thatthe beams may be held in anydesired rocked position.

" Thecables pass from the-drum 54, to and 65 around the under side ofrollers 61 on one end of the rocking-beams; then over the upper side ofthe rollers 62, at the opposite end of the beams, and then, in thisinstance, beneath a series of idler pulleys 66, on their way to thepulleys 34, 35, 36 and 37 at the end of the boom.

The tension-varying devices, preferably, are normally set in an inclinedposition, as shown in Fig. 9 of the drawings so that a bend will beformed in each cable between the drum 54 and the idler pulleys 66,instead of allowing those cables to run in a direct straight line fromthe drum to said pulleys.

Obviously, if the lever 63, shown in Fig. 9 is swung to the right, thebend in cable 44, shown in that view, will be let out, consequently. theload-end of that cable will be lowered and the hammer at the lower endof that cable will shift its position and tilt as it takes up the slackthus provided.

Thus by varying the tension of the cables, the hammer may be tilted bymaking the suspension cables of unequal tension so that the hammer maybe made to take any one of a wide range of tilted or inclined positions.

The spreader frame 46 about the hammer 45, in. this instance, is formedin two parts and has vertical side flanges 47 by which said parts arebolted together.

This frame also has at its rear side a laterally-projecting anddownwardly-curved hook-lug 67 which extends laterally from between thespreader-arms 49 and 51, as shown in Figs. 4 and 5 of the drawing whichlug is provided for a purpose that will presently be explained.

The spreader frame 46 also has a depending shield or apron 68 whichextends downwardly therefrom and preferably lies close against the rearside of the hammer casing 45, as can be seen in Figs. 1, 2 and 5 of thedrawings.

No attempt, has been made herein to illustrate the hammer structure,which in practice may be operated by fluid pressure as set forth in mysaid pending application for patent, or by any power means, to direct ablow on the tool at the lower end of the hammer and below the guardplate 74.

I provide a cable 69 which extends from the .cab. 21 to. and is attachedto a part of the hammer by which the hammer may be drawn toward the caband held out of the way of the shovel 26, as indicated in broken linesin Fig. 2 of the drawing, when it is desired to use the shovel alone.

. In the operation of the device, the cab 21 may be turned on the truck20 so the boom 22 may project as near as practicable over the rock ormaterial to be broken.

If the boulder is located in a vertical plane of the boom beyond theupper suspension end, the dipper 26 may be readily manipulated to engageunder the hook-lug 6'7 of the spreader-frame and swing the hammer intoan inclined position as shown in Fig. 1, and

thus present the hammer-tool to the rock in a way to produce the bestsplitting results.

If it is then desired to move the hammer back to present the tool 7 5 toanother face of the rock, a slight rearward movement to the dipper and afurther adjustment of the su pension cables 41, 42, 43 or 44 ifnecessary will again enable the hammer to be properly positioned withrespect to the face of the rock or material to be broken.

If a rock should be under the boom, the shovel may engage the hook-lug67 and draw the hammer backward over such rock.

The shovel therefore acts as a support at one side of the hammer whilethe suspension cables may be manipulated to tilt the hammer above thatsupport.

Qbviously the dipper is operated through its dipper-stick and the cables7 6 and pulleys 77 in the usual manner.

When the rock has been broken sufficiently for the shovel to scoop it ua and load it upon cars, the hammer will be drawn to one side by cable69 and the shovel then proceed with its work independently of thehammer.

Having described my invention, I claim,-

1. The combination of a power hammer, of a plurality of separatesuspension devices to engage the hammer at spaced points with respect tothe axis of the hammer, means for operating the suspension devices toeffect a tilting of the hammer and a power operated dipper to engage thehammer and shift the latter laterally.

2. The combination with a power hammer, of means for moving the hammerup and down and to tilt the latter to an inclined position and a poweroperated dipper movable to engage the hammer to shift the samelaterally.

3. The combination with a portable vehicle, of a boom extending from thevehicle and mounted so it may be swung, a power hammer sustained fromthe boom, means for raising, lowering and tiltin the hammer and a powerdipper also operated from the boom and movable to engage the hammer toshift the latter laterally with respect to the suspension point of theboom.

4. The combination with a vehicle having a boom, of a power hammer, aplurality of cables directed by the boom to and suspending the hammer,means for manipulating the cables to effect a tilting of the hammer, apower dipper directed by the boom said dipper being movable to engagethe hammer to shift the latter out of plumb with respect to thesuspension point of the boom.

5. The combination with a power hammer, of a plurality of arms radiatingfrom the hammer, a separate cable attached to each of said arms wherebyto suspend the hammer, means for operating the cables to effect atilting of the hammer, a power dipper and means for operating the dipperto engage it

